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<HEAD>

    <TITLE>JHU/APL Auroral Oval Boundary</TITLE>

    <META NAME="Copyright" CONTENT="Copyright 2000 Johns Hopkins University Applied Physics Laboratory"/>

    <META NAME="Date" CONTENT="21 February 2000"/>

    <META NAME="Author" CONTENT="J. P. Skura"/>


  

  

    

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<H2>Current OVATION Boundary Information</H2><BR>
<PRE>
09 Jun 1997 14:04:29 yearsecs  13788269
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.31  227.43  -44.01  147.87
    1.00  -57.54  242.43  -46.03  159.36
    2.00  -57.73  257.43  -48.44  171.04
    3.00  -57.89  272.43  -51.14  183.05
    4.00  -58.02  287.43  -54.07  195.46
    5.00  -58.51  302.43  -57.74  207.94
    6.00  -60.15  317.43  -62.94  219.94
    7.00  -61.38  332.43  -67.83  234.19
    8.00  -60.67  347.43  -70.52  254.86
    9.00  -60.66    2.43  -72.88  280.37
   10.00  -60.64   17.43  -73.02  310.61
   11.00  -60.75   32.43  -70.67  338.19
   12.00  -61.02   47.43  -67.12  359.50
   13.00  -61.47   62.43  -63.64   16.71
   14.00  -62.10   77.43  -60.65   32.14
   15.00  -62.92   92.43  -58.13   46.77
   16.00  -63.94  107.43  -56.06   60.59
   17.00  -65.16  122.43  -54.60   73.32
   18.00  -65.46  137.43  -52.81   84.20
   19.00  -64.17  152.43  -50.02   93.84
   20.00  -62.58  167.43  -47.43  103.83
   21.00  -61.34  182.43  -45.71  114.32
   22.00  -59.47  197.43  -43.97  125.08
   23.00  -58.31  212.43  -43.63  136.28
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.39  227.43  -56.42  143.28
    1.00  -71.27  242.43  -58.78  151.95
    2.00  -72.10  257.43  -61.45  160.30
    3.00  -72.49  272.43  -64.09  168.81
    4.00  -73.17  287.43  -67.33  176.57
    5.00  -74.42  302.43  -71.28  182.37
    6.00  -74.64  317.43  -74.74  190.04
    7.00  -73.49  332.43  -77.69  203.93
    8.00  -73.58  347.43  -81.57  216.24
    9.00  -73.98    2.43  -85.66  234.16
   10.00  -73.56   17.43  -87.53  315.09
   11.00  -73.32   32.43  -84.33   13.47
   12.00  -73.20   47.43  -80.07   32.74
   13.00  -73.11   62.43  -75.82   44.95
   14.00  -73.21   77.43  -71.96   55.66
   15.00  -73.10   92.43  -68.29   64.81
   16.00  -73.54  107.43  -65.54   74.54
   17.00  -73.82  122.43  -63.24   83.37
   18.00  -73.47  137.43  -60.89   91.22
   19.00  -72.53  152.43  -58.49   98.90
   20.00  -72.18  167.43  -57.14  107.43
   21.00  -71.31  182.43  -55.72  116.04
   22.00  -71.35  197.43  -55.73  124.99
   23.00  -70.35  212.43  -55.28  134.13
</PRE>


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